A suspect in the separate shooting deaths of two gas company workers was found Thursday with a self-inflicted gunshot wound to the head.

Phong Thuch Tran, 36, shot himself as he sat in his sport utility vehicle outside the Anaheim police station, authorities said. Tran survived the apparent suicide attempt but is in grave condition.

A patrol officer identified the Toyota RAV4 and its license plate at about 1:30 a.m. from an arrest warrant that had been issued Wednesday for Tran, of Orange County, Calif.

When the officer approached the shattered driver's side window, he found Tran still alive and moving but suffering from severe head wounds, said police Sgt. Rick Martinez.

After an armored vehicle blocked the SUV, Tran was shot with beanbag rounds, pulled from the car and taken to a hospital in critical condition, according to Martinez.

Two handguns were recovered from the vehicle, he said.

Charles Santisteban, 43, a supervisor at Southern California Gas Co., was gunned down in his driveway Wednesday in Pomona.

The other victim, 37-year-old Hung Duy Dao of Westminster, was found dead Tuesday night in the driver's seat of his car outside the utility's Anaheim office where he worked as a field technician for about six years.

Santisteban had worked at the Anaheim plant but left about six months ago to take a job at the utility's Pasadena office, according to Sgt. Tim Schmidt.

The two victims knew each other and worked together at one point, Schmidt said.

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